Final answer:
The temperature above 65,800 ft remains constant up to 115,000 ft. This occurs in the middle stratosphere, where temperature plateaus or may increase due to ozone absorption of ultraviolet radiation.
Step-by-step explanation:
The question concerns the temperature changes within the Earth's atmosphere at various altitudes. After passing 65,800 ft, the correct answer for temperature behavior up to 115,000 ft is B. remains constant. In atmospheric layers above the troposphere, specifically in the middle stratosphere, there is a region where the temperature levels off or even starts to increase again - this is due to ozone absorbing ultraviolet radiation. However, before giving a definitive answer to this specific range of altitude, it's essential to refer to detailed atmospheric temperature profiles to capture variations according to different atmospheric conditions.